That absolutely make sense to me. I don't want to take any chances. But somewhere I heard as a student can reenter from mexico showing a I94 card and I20, even if you get rejected for visa. I don't know how far is it true. Also I heard some people hire a immigration lawyer in the border to take them along to the embassy at mexico, even during the time of interview. So if there is any issues they start to flip a law book to explain the embassy people and there is no chance of getting rejected. Does anyone know about it? If so can anyone suggest a good lawyer I can consult to.